Grade-indicator.



J. B. & M. E. SHEMEL'EY.

GRADE INDICATOR. APPLICAIION FILED Nov. 27. 1911.

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I, To all wiziomf z't magie oncern Be'it imawn antes; Jesse B. same.

aIId MAR IO N snnmnnnrfcitizens of the United States, residingat El Paso, in the of Texas, have in-' vented' certain new'j and useful Improvecounty or ElPas o, State ments in Gra'de Indi tors"; and we do hereby j'declarethe following to bea full, clear, and

- which it same; 7 v This invention'relates'to grade indicators,

vention to I I will indicate cate the grade,

"*exactdescription of the invention, such as skilled in the art to v length as to elongate the iframj som will enable othe appertains to make and use? the and has particular reference to instruments for use on motor veh cles, fly ng machines,

vessel in both a direction. p

Furthermorefit is the object of the inlat'er'al longitudinal I the; inclination of the vehicle or craft carrying the instrument to one side or theother, and will simultaneously indi- With relation to cated in degrees, while the incline of the vehicle on the longitudinal axis isie'xpressed .inent.

on the dial plate in gradient percentages.-

W iththe abore objects in view, and such others relating to the details of construction,

as may hereinafter appear, our invention will now be fullyset forth and ldescribed, to the accompanying n reference. being drawings.

In the drawings F'gure l is a front elevational View of the improved instrument.

Fig. 2 is a side elevational view of the body frame of the instrument, the inclosing casing being in sectionl' Fig. 3 is a central sectional View taken longitudinally through the instrument on a plane intersecting the axis of the instru- Fig. 4 is a transverse sectional view through the *inSt-rrunent on the line 4.-& of Fig. l.

Fig. 5. is a-ftransverse sectional view v specification ofLetters"Patent Flgsirfl i Fig. 6 sua perspectii eieie ofth ed, gear; wheel fonvprocuri ngrfie pf the grade in onerdirection [front head and th rearhead being, connected b 'flw,

provide an instrument which.

whether it-be up or down the direction of the vehicle. n l or craft. In this connection, the instrument is preferably arranged to indicate the in- -;clinations in direct terms. That is, the in- "clina-tions-toone side or the other are-indie .ing beyqnd, the front.

Betv'veeh' the head '2uafnd the inn finstrument ortthe n; 9p carried, in lateral" directions.

4 their actions may be rat Referring\more'particiilarlyi 1ngs,-,; 1,, represents:aa gsfranre:

y Furthermore, tithe; angleirbars see what, and substantially at their niiddie pointsithebars are connected bycztransverse Mounted upon the fronfigof the 'y means. of a plurality 7 w h are fa other bearingin that."

lar shaft 13. said tn as to receive thereoniansindio inghaaid the dial plate, the, shaft 3 thereon the counteryam-elt.

constru e -P ha ance dithat it; y l

Extending longitudinally through the vframe i a shaft 16 whose rear end has a bearing in vthe head 3, and whose forward end is journaled in a bearing bracket 17 which is carried upon the rear side of the head 2,"the shaft 16 then extending through the tubular shaft. 13 and beyond the front face of the dial plate. Thus, while the shafts 13 and 16 rotate upon a-common axis,

independent of one-another. Mounted 'between one of the transverse struts of the frame 1 and a parallel brace 18 i a shaft 19 upon which is carried a; balance wheel 20. The balance wheel 20 is a combination counterweight and bevel gear wheel, and is formed of an annulus 21 aving a series of bevel teeth out therein, and having its lower half formed as a shoultransversely of its axis. Meshing with the,

teeth of the balance wheel 20 is a smaller bevel gear 22 which is fixed upon the shaft 16, so that the movements of the balance wheel will be communicated to the shaft 16 and through the latter to an indicating hand 23 secured upon the forward end of the shaft to overlie the dial plate 6. The hand 23'is frictionally mounted upon the shaft 16, so that by relative movementof the hand upon the shaft the instrument may be adjusted for zero position, a knurled head upon the rear end of the shaft 16 permitting the latter to be fixedly 'held while the hand is adjusted thereon.

The dial plate 6,is provided with two. sets of graduatibns which are concentrically arranged, and are to be read in connection with the hands 14. and 23. The outer set of raduations 24 is divided into degrees, whic read from the bottom of the dial in both direction toward the top in sets of 180 degrees each, and the hand 14 swinging thereover indicates in degrees the lateral inclination of the vehicle. The inner set of graduations arc divisions-indicating percentage, and in the present case read from zero at the bottom to twenty-five at the top, and as the hand 23 swings thereover, represents the I percentage of the gradient over which vehicles travel, and also the direction of the gradient, whether it be up or down. Pref-' erably, one half of the dial plate, within the inner set of graduations is colored so asto' distinguish from the opposite half, thereby providing a greater aid to the vision in readin the instrument.

The instrument which has been described, therefore, provides a direction indicatin apparatu for determining the lateral inc ination of the vehicle or craftupon whichi mounted, and will simultaneously indiea the upward or downward progress of the manufacture, by reason of the small num-- ber of parts and their comparative simplic ity, may be carried-out at a minimum cost- What we claim as our. invention is 1. A ade indicator includin a' frame adapted for securement to a veh1cle',a tubular shaft journaled in the frame, a second shaft rotatably mounted in the tubular shaft, indicating hands carried on adjacent ends of the shafts, a dial plate cooperatingwith said indicator hands, a balance weight journaled in; theframe and extending transversely of the second namedshaft and in shaft, indicating hands carried on adjacent ends of the shafts, a dial plate cooperating with said indicator hands, a balance weight suspended from the tubular shaft, ashaft journaled in the frame and extending transversely of the second named shaft, a disk mounted on the transverse shaft and having one side portion cut away inwardly of its 05- suspended from the tubular shaft, a shaftperipheral edge whereby its other side por- I tion forms a balance weight on the shaft, a peripheral series .of gear teeth formed on the disk and a gear wheel on the second named shaft meshing with the'teeth'ofthe f disk.

In testimony whereof, we aflix our signatures in the presence of two witnesses.

JESSE B. SHEMELEY.

I MARION E. SHEMELEY.

Witnesses:

CHAS. L. Gmvnn, W. MQPARKER. 

